Camera optical lens

ABSTRACT

A camera optical lens is provided. The camera optical lens includes, from an object side to an image side, a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens. The camera optical lens satisfies following conditions: 2.00≤f1/f≤5.00, and 2.00≤d3/d4≤10.00, where f denotes a focal length of the camera optical lens, f1 denotes a focal length of the first lens, d3 denotes an on-axis thickness of the second lens, and d4 denotes an on-axis distance from an image side surface of the second lens to an object side surface of the third lens. The camera optical lens according to the present disclosure meets design requirements for large aperture, wide angle and ultra-thinness while having good optical performance.

TECHNICAL FIELD

The present disclosure relates to the field of optical lenses, and inparticular, to a camera optical lens applicable to portable terminaldevices such as smart phones or digital cameras, and camera devices suchas monitors or PC lenses.

BACKGROUND

With the emergence of smart phones in recent years, the demand forminiature camera lens has been increased. However, a photosensitivedevice of general camera lens is either a Charge Coupled Device (CCD) ora Complementary Metal-Oxide Semiconductor Sensor (CMOS Sensor). With theprogress of the semiconductor manufacturing technology, the pixel sizeof the photosensitive device becomes smaller. In addition, the currentelectronic products have been developed to have better functions andlighter and smaller dimensions. Therefore, a miniature camera lens withgood imaging quality has already become a mainstream in the currentmarket.

In order to obtain better imaging quality, a traditional lens equippedin a mobile phone camera usually adopts a three-piece or four-piecestructure, or even five-piece or six-piece structure. However, with thedevelopment of technologies and the increase of the various demands ofusers, a nine-piece structure gradually appears in lens designs as thepixel area of the photosensitive devices is constantly reduced and therequirement of the system on the imaging quality is constantly improved.Although the common nine-piece lens already has better opticalperformance, its settings on refractive power, lens spacing, and lensshape are still unreasonable to some extent. As a result, the lensstructure cannot meet design requirements for ultra-thin, wide-anglelenses having a big aperture while achieving a good optical performance.

SUMMARY

In view of the above problems, the present disclosure provides a cameraoptical lens, which meets design requirements for large aperture,ultra-thinness and wide angle while achieving good optical performance.

In an embodiment, the present disclosure provides a camera optical lens.The camera optical lens includes, from an object side to an image side,a first lens having a positive refractive power, a second lens having anegative refractive power, a third lens, a fourth lens, a fifth lens, asixth lens, a seventh lens, an eighth lens, and a ninth lens. The cameraoptical lens satisfies following conditions: 2.00≤f1/f≤5.00; and2.00≤d3/d4≤10.00, where f denotes a focal length of the camera opticallens, f1 denotes a focal length of the first lens, d3 denotes an on-axisthickness of the second lens, and d4 denotes an on-axis distance from animage side surface of the second lens to an object side surface of thethird lens.

As an improvement, the camera optical lens further satisfies a conditionof 1.50≤f6/f≤5.00, where f6 denotes a focal length of the sixth lens.

As an improvement, the camera optical lens further satisfies followingconditions: −22.67≤(R1+R2)/(R1−R2)≤−3.33; and 0.03≤d1/TTL≤0.09, where R1denotes a central curvature radius of an object side surface of thefirst lens, R2 denotes a central curvature radius of an image sidesurface of the first lens, d1 denotes an on-axis thickness of the firstlens, and TTL denotes a total optical length from the object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.

As an improvement, the camera optical lens further satisfies followingconditions: f2/f≤−2.39; 3.19≤(R3+R4)/(R3−R4)≤60.59; and0.02≤d3/TTL≤0.11, where f2 denotes a focal length of the second lens, R3denotes a central curvature radius of an object side surface of thesecond lens, R4 denotes a central curvature radius of the image sidesurface of the second lens, and TTL denotes a total optical length froman object side surface of the first lens to an image plane of the cameraoptical lens along an optic axis.

As an improvement, the camera optical lens further satisfies followingconditions: 0.90≤f3/f≤6.47; −28.31≤(R5+R6)/(R5−R6)≤−3.51; and0.02≤d5/TTL≤0.06, where f3 denotes a focal length of the third lens, R5denotes a central curvature radius of the object side surface of thethird lens, R6 denotes a central curvature radius of an image sidesurface of the third lens, d5 denotes an on-axis thickness of the thirdlens, and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.

As an improvement, the camera optical lens further satisfies followingconditions: −57.47≤f4/f≤27.56; −35.82≤(R7+R8)/(R7−R8)≤28.73; and0.01≤d7/TTL≤0.04, where f4 denotes a focal length of the fourth lens, R7denotes a central curvature radius of the object side surface of thefourth lens, R8 denotes a central curvature radius of an image sidesurface of the fourth lens, d7 denotes an on-axis thickness of thefourth lens, and TTL denotes a total optical length from an object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.

As an improvement, the camera optical lens further satisfies followingconditions: −81.41≤f5/f≤37.80; −12.49≤(R9+R10)/(R9−R10)≤20.10; and0.02≤d9/TTL≤0.09, where f5 denotes a focal length of the fifth lens, R9denotes a central curvature radius of an object side surface of thefifth lens, R10 denotes a central curvature radius of an image sidesurface of the fifth lens, d9 denotes an on-axis thickness of the fifthlens, and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.

As an improvement, the camera optical lens further satisfies followingconditions: −1.81≤(R11+R12)/(R11−R12)≤2.00; and 0.04≤d11/TTL≤0.13, whereR11 denotes a central curvature radius of an object side surface of thesixth lens, R12 denotes a central curvature radius of an image sidesurface of the sixth lens, d11 denotes an on-axis thickness of the sixthlens, and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.

As an improvement, the camera optical lens further satisfies followingconditions: −4.45≤f7/f≤−0.50; 0.64≤(R13+R14)/(R13−R14)≤3.64; and0.03≤d13/TTL≤0.15, where f7 denotes a focal length of the seventh lens,R13 denotes a central curvature radius of an object side surface of theseventh lens, R14 denotes a central curvature radius of an image sidesurface of the seventh lens, d13 denotes an on-axis thickness of theseventh lens, and TTL denotes a total optical length from an object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.

As an improvement, the camera optical lens further satisfies followingconditions: 0.28≤f8/f≤1.31; −2.51≤(R15+R16)/(R15−R16)≤−0.75; and0.04≤d15/TTL≤0.12, where f8 denotes a focal length of the eighth lens,R15 denotes a central curvature radius of an object side surface of theeighth lens, R16 denotes a central curvature radius of an image sidesurface of the eighth lens, d15 denotes an on-axis thickness of theeighth lens, and TTL denotes a total optical length from an object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.

As an improvement, the camera optical lens further satisfies followingconditions: −1.51≤f9/f≤−0.48; 0.27≤(R17+R18)/(R17−R18)≤0.98; and0.04≤d17/TTL≤0.12, where f9 denotes a focal length of the ninth lens,R17 denotes a central curvature radius of an object side surface of theninth lens, R18 denotes a central curvature radius of an image sidesurface of the ninth lens, d17 denotes an on-axis thickness of the ninthlens, and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.

The present disclosure has the following beneficial effects. The cameraoptical lens according to the present disclosure has excellent opticalperformance while achieving the characteristics of large aperture, wideangle and ultra-thinness, particularly applicable to camera lensassembly of mobile phones and WEB camera lenses composed of CCD, CMOS,and other camera elements for high pixels.

BRIEF DESCRIPTION OF DRAWINGS

In order to clearly illustrate technical solutions in embodiments of thepresent disclosure, the accompanying drawings used in the embodimentsare briefly introduced as follows. It is apparent that the drawingsdescribed below are merely part of the embodiments of the presentdisclosure. Other drawings can also be acquired by those of ordinaryskill in the art without involving inventive steps. In the drawings,

FIG. 1 is a schematic structural diagram of a camera optical lensaccording to Embodiment 1 of the present disclosure;

FIG. 2 is a schematic diagram of longitudinal aberration of the cameraoptical lens shown in FIG. 1;

FIG. 3 is a schematic diagram of lateral color of the camera opticallens shown in FIG. 1;

FIG. 4 is a schematic diagram of field curvature and distortion of thecamera optical lens shown in FIG. 1;

FIG. 5 is a schematic structural diagram of a camera optical lensaccording to Embodiment 2 of the present disclosure;

FIG. 6 is a schematic diagram of longitudinal aberration of the cameraoptical lens shown in FIG. 5;

FIG. 7 is a schematic diagram of lateral color of the camera opticallens shown in FIG. 5;

FIG. 8 is a schematic diagram of field curvature and distortion of thecamera optical lens shown in FIG. 5;

FIG. 9 is a schematic structural diagram of a camera optical lensaccording to Embodiment 3 of the present disclosure;

FIG. 10 is a schematic diagram of longitudinal aberration of the cameraoptical lens shown in FIG. 9;

FIG. 11 is a schematic diagram of lateral color of the camera opticallens shown in FIG. 9; and

FIG. 12 is a schematic diagram of field curvature and distortion of thecamera optical lens shown in FIG. 9.

DESCRIPTION OF EMBODIMENTS

Embodiments of the present disclosure will hereinafter be described indetail with reference to the accompanying drawings so as to make thepurpose, technical solutions, and advantages of the present disclosuremore apparent. However, those of skilled in the art can understand thatmany technical details described hereby in each embodiment of thepresent disclosure is only to provide a better comprehension of thepresent disclosure. Even without these technical details and variouschanges and modifications based on the following embodiments, thetechnical solutions of the present disclosure can also be implemented.

Embodiment 1

Referring to the drawings, the present disclosure provides a cameraoptical lens 10. FIG. 1 illustrates the camera optical lens 10 accordingto Embodiment 1 of the present disclosure. The camera optical lens 10includes nine lenses. Specifically, the camera optical lens 10successively includes, from an object side to an image side, an apertureS1, a first lens L1, a second lens L2, a third lens L3, a fourth lensL4, a fifth lens L5, a sixth lens L6, a seventh lens L7, an eighth lensL8, and a ninth lens L9. An optical element such as an optical filter GFmay be provided between the ninth lens L9 and an image plane Si.

In this embodiment, the first lens L1 has a positive refractive power,the second lens L2 has a negative refractive power, the third lens L3has a positive refractive power, the fourth lens L4 has a negativerefractive power, the fifth lens L5 has a positive refractive power, thesixth lens L6 has a positive refractive power, the seventh lens L7 has anegative refractive power, the eighth lens L8 has a positive refractivepower, and the ninth lens L9 has a negative refractive power. It shouldbe appreciated that in other embodiments, the third lens L3, the sixthlens L6, the seventh lens L7, the eighth lens L8, and the ninth lens L9may also have other refractive power.

In this embodiment, the first lens L1 is made of a plastic material, thesecond lens L2 is made of a plastic material, the third lens L3 is madeof a plastic material, the fourth lens L4 is made of a plastic material,the fifth lens L5 is made of a plastic material, the sixth lens L6 ismade of a plastic material, the seventh lens L7 is made of a plasticmaterial, the eighth lens L8 is made of a plastic material, and theninth lens L9 is made of a plastic material. In other embodiments, eachof the lenses may also be made of other material.

In this embodiment, a focal length of the camera optical lens 10 isdefined as f, and a focal length of the first lens L1 is defined as f1.The camera optical leans 10 satisfies a condition of 2.00≤f1/f≤5.00,which specifies a ratio of the focal length of the first lens to a totalfocal length of the system. When the condition is satisfied, sphericalaberration and field curvature of the system can be effectivelybalanced.

An on-axis thickness of the second lens L2 is defined as d3, and anon-axis distance from an image side surface of the second lens L2 to anobject side surface of the third lens L3 is defined as d4. The cameraoptical leans 10 satisfies a condition of 2.00≤d3/d4≤10.00, whichspecifies a ratio of the on-axis thickness of the second lens L2 to anair gap between the second lens and the third lens. This conditionfacilitates reducing a total length of the optical system, therebyachieving an ultra-thin effect. As an example, the camera optical leans10 satisfies a condition of 2.13≤d3/d4≤9.93.

A focal length of the sixth lens is defined as f6. The camera opticalleans 10 satisfies a condition of 1.50≤f6/f≤5.00, which specifies aratio of the focal length of the sixth lens L6 to the total focal lengthof the system. The system therefore achieves a better imaging qualityand a lower sensitivity by reasonably distributing the refractive power.

In this embodiment, an object side surface of the first lens L1 is aconvex surface at a paraxial position, and an image side surface of thefirst lens L1 is a concave surface at the paraxial position.

A central curvature radius of the object side surface of the first lensL1 is defined as R1, and a central curvature radius of the image sidesurface of the first lens L1 is defined as R2. The camera optical leans10 satisfies a condition of −22.67≤(R1+R2)/(R1−R2)≤−3.33. This conditioncan reasonably control a shape of the first lens L1, such that the firstlens L1 can effectively correct spherical aberration of the system. Asan example, the camera optical leans 10 satisfies a condition of−14.17≤(R1+R2)/(R1−R2)≤−4.16.

An on-axis thickness of the first lens L1 is defined as d1, and a totaloptical length of the camera optical lens 10 is defined as TTL. Thecamera optical leans 10 satisfies a condition of 0.03≤d1/TTL≤0.09. Thiscondition can facilitate achieving ultra-thin lenses. As an example, thecamera optical leans 10 satisfies a condition of 0.04≤d1/TTL≤0.07.

In this embodiment, an object side surface of the second lens L2 is aconvex surface at the paraxial position, and an image side surface ofthe second lens L2 is a concave surface at the paraxial position.

A focal length of the camera optical lens 10 is defined as f, and afocal length of the second lens L2 is defined as f2. The camera opticalleans 10 satisfies a condition of f2/f≤−2.39. This condition canfacilitate aberration correction of the optical system by controlling apositive refractive power of the second lens L2 within a reasonablerange. As an example, the camera optical leans 10 satisfies a conditionof f2/f≤−2.98.

A central curvature radius of the object side surface of the second lensL2 is defined as R3, and a central curvature radius of the image sidesurface of the second lens L2 is defined as R4. The camera optical leans10 satisfies a condition of 3.19≤(R3+R4)/(R3−R4)≤60.59, which specifiesa shape of the second lens L2. This condition can facilitate correctingthe on-axis aberration with development of ultra-thin and wide-anglelenses. As an example, the camera optical leans 10 satisfies a conditionof 5.10≤(R3+R4)/(R3−R4)≤48.47.

An on-axis thickness of the second lens L2 is defined as d3, and thetotal optical length of the camera optical lens 10 is defined as TTL.The camera optical leans 10 satisfies a condition of 0.02≤d3/TTL≤0.11.This condition can achieve ultra-thin lenses. As an example, the cameraoptical leans 10 satisfies a condition of 0.04≤d3/TTL≤0.08.

In this embodiment, an object side surface of the third lens L3 is aconvex surface at the paraxial position, and the image side surface ofthe third lens L3 is a concave surface at the paraxial position.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the third lens L3 is defined as f3. The camera opticalleans 10 satisfies a condition of 0.90≤f3/f≤6.47. The system thereforeachieves a better imaging quality and a lower sensitivity by reasonablydistributing the refractive power. As an example, the camera opticalleans 10 satisfies a condition of 1.44≤f3/f≤5.17.

A central curvature radius of the object side surface of the third lensL3 is defined as R5, and a central curvature radius of an image sidesurface of the third lens L3 is defined as R6. The camera optical leans10 satisfies a condition of −28.31≤(R5+R6)/(R5−R6)≤−3.51, whichspecifies a shape of the third lens. This condition can alleviate thedeflection of light passing through the lens, thereby effectivelyreducing the aberration. As an example, the camera optical leans 10satisfies a condition of −17.70≤(R5+R6)/(R5−R6)≤−4.39.

An on-axis thickness of the third lens L3 is defined as d5, and thetotal optical length of the camera optical lens 10 is defined as TTL.The camera optical leans 10 satisfies a condition of 0.02≤d5/TTL≤0.06.This condition can achieve ultra-thin lenses. As an example, the cameraoptical leans 10 satisfies a condition of 0.03≤d5/TTL≤0.05.

In this embodiment, the object side surface of the fourth lens L4 is aconvex surface at the paraxial position, and an image side surface ofthe fourth lens L4 is a concave surface at the paraxial position.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the fourth lens L4 is defined as f4. The camera opticalleans 10 satisfies a condition of −57.47≤f4/f≤27.56. The systemtherefore achieves a better imaging quality and a lower sensitivity byreasonably distributing the refractive power. As an example, the cameraoptical leans 10 satisfies a condition of −35.92≤f4/f≤22.05.

A central curvature radius of the object side surface of the fourth lensL4 is defined as R7, and a central curvature radius of the image sidesurface of the fourth lens L4 is defined as R8. The camera optical leans10 satisfies a condition of −35.82≤(R7+R8)/(R7−R8)≤28.73, whichspecifies a shape of the fourth lens L4. This condition can facilitateaberration correction of an off-axis angle of view with development ofultra-thin and wide-angle lenses. As an example, the camera opticalleans 10 satisfies a condition of −22.39≤(R7+R8)/(R7−R8)≤22.98.

An on-axis thickness of the fourth lens L4 is defined as d7, and thetotal optical length of the camera optical lens 10 is defined as TTL.The camera optical leans 10 satisfies a condition of 0.01≤d7/TTL≤0.04.This condition can achieve ultra-thin lenses. As an example, the cameraoptical leans 10 satisfies a condition of 0.02≤d7/TTL≤0.03.

In this embodiment, an object side surface of the fifth lens L5 is aconvex surface at the paraxial position, and an image side surfacethereof is a convex surface at the paraxial position.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the fifth lens L5 is defined as f5. The camera opticalleans 10 satisfies a condition of −81.41≤f5/f≤37.80. The fifth lens L5is limited to effectively make a light angle of the camera lens gentleand reduce the tolerance sensitivity. As an example, the camera opticalleans 10 satisfies a condition of −50.88≤f5/f≤30.24.

A central curvature radius of the object side surface of the fifth lensL5 is defined as R9, and a central curvature radius of the image sidesurface of the fifth lens L5 is defined as R10. The camera optical leans10 satisfies a condition of −12.49≤(R9+R10)/(R9−R10)≤20.10, whichspecifies a shape of the fifth lens L5. This condition can facilitateaberration correction of an off-axis angle of view with development ofultra-thin and wide-angle lenses. As an example, the camera opticalleans 10 satisfies a condition of −7.81≤(R9+R10)/(R9−R10)≤16.08.

An on-axis thickness of the fifth lens L5 is defined as d9, and thetotal optical length of the camera optical lens 10 is defined as TTL.The camera optical leans 10 satisfies a condition of 0.02≤d9/TTL≤0.09.This condition can achieve ultra-thin lenses. As an example, the cameraoptical leans 10 satisfies a condition of 0.04≤d9/TTL≤0.07.

In this embodiment, the object side surface of the sixth lens L6 is aconcave surface at the paraxial position, and the image side surface ofthe sixth lens L6 is a convex surface at the paraxial position.

A central curvature radius of the object side surface of the sixth lensL6 is defined as R11, and a central curvature radius of the image sidesurface of the sixth lens L6 is defined as R12. The camera optical leans10 satisfies a condition of −1.81≤(R11+R12)/(R11−R12)≤2.00, whichspecifies a shape of the sixth lens L6. This condition can facilitateaberration correction of an off-axis angle of view with development ofultra-thin and wide-angle lenses. As an example, the camera opticalleans 10 satisfies a condition of −1.13≤(R11+R12)/(R11−R12)≤1.60.

An on-axis thickness of the sixth lens L6 is defined as d11, and thetotal optical length of the camera optical lens 10 is defined as TTL.The camera optical leans 10 satisfies a condition of 0.04≤d11/TTL≤0.13.This condition can achieve ultra-thin lenses. As an example, the cameraoptical leans 10 satisfies a condition of 0.06≤d11/TTL≤0.10.

In this embodiment, an object side surface of the seventh lens L7 is aconvex surface at the paraxial position, and an image side surface ofthe seventh lens L7 is a concave surface at the paraxial position.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the seventh lens L7 is defined as f7. The camera opticalleans 10 satisfies a condition of −4.45≤f7/f≤−0.50. The system thereforeachieves a better imaging quality and a lower sensitivity by reasonablydistributing the refractive power, within the range of this condition.As an example, the camera optical leans 10 satisfies a condition of−2.78≤f7/f≤−0.63.

A central curvature radius of the image side surface of the seventh lensL7 is defined as R13, and a central curvature radius of the image sidesurface of the seventh lens L7 is defined as R14. The camera opticalleans 10 satisfies a condition of 0.64≤(R13+R14)/(R13−R14)≤3.64, whichspecifies a shape of the seventh lens L7. This condition can facilitateaberration correction of an off-axis angle of view with development ofultra-thin and wide-angle lenses. As an example, the camera opticalleans 10 satisfies a condition of 1.02≤(R13+R14)/(R13−R14)≤2.91.

An on-axis thickness of the seventh lens L7 is defined as d13, and thetotal optical length of the camera optical lens 10 is defined as TTL.The camera optical leans 10 satisfies a condition of 0.03≤d13/TTL≤0.15.This condition can achieve ultra-thin lenses. As an example, the cameraoptical leans 10 satisfies a condition of 0.05≤d13/TTL≤0.12.

In this embodiment, an object side surface of the eighth lens L8 is aconvex surface at the paraxial position, and an image side surfacethereof is a concave surface at the paraxial position.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the eighth lens L8 is defined as f8. The camera opticalleans 10 satisfies a condition of 0.28≤f8/f≤1.31. The system thereforeachieves a better imaging quality and a lower sensitivity by reasonablydistributing the refractive power. As an example, the camera opticalleans 10 satisfies a condition of 0.44≤f8/f≤1.05.

A central curvature radius of the object side surface of the eighth lensL8 is defined as R15, and a central curvature radius of the image sidesurface of the eighth lens L8 is defined as R16. The camera opticalleans 10 satisfies a condition of −2.51≤(R15+R16)/(R15−R16)≤−0.75, whichspecifies a shape of the eighth lens. This condition can facilitateaberration correction of an off-axis angle of view with development ofultra-thin and wide-angle lenses. As an example, the camera opticalleans 10 satisfies a condition of −1.57≤(R15+R16)/(R15−R16)≤−0.94.

An on-axis thickness of the eighth lens L8 is defined as d15, and thetotal optical length of the camera optical lens 10 is defined as TTL.The camera optical leans 10 satisfies a condition of 0.04≤d15/TTL≤0.12.This condition can achieve ultra-thin lenses. As an example, the cameraoptical leans 10 satisfies a condition of 0.06≤d15/TTL≤0.09.

In this embodiment, an object side surface of the ninth lens L9 is aconcave surface at the paraxial position, and an image side surface ofthe ninth lens L9 is a concave surface at the paraxial position.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the ninth lens L9 is defined as f9. The camera opticalleans 10 satisfies a condition of −1.51≤f9/f≤−0.48. The system thereforeachieves a better imaging quality and a lower sensitivity by reasonablydistributing the refractive power. As an example, the camera opticalleans 10 satisfies a condition of −0.95≤f9/f≤−0.60.

A central curvature radius of the object side surface of the ninth lensL9 is defined as R17, and a central curvature radius of the image sidesurface of the ninth lens L9 is defined as R18. The camera optical leans10 satisfies a condition of 0.27≤(R17+R18)/(R17−R18)≤0.98, whichspecifies a shape of the ninth lens. This condition can facilitateaberration correction of an off-axis angle of view with development ofultra-thin and wide-angle lenses. As an example, the camera opticalleans 10 satisfies a condition of 0.43≤(R17+R18)/(R17−R18)≤0.79.

An on-axis thickness of the ninth lens L9 is defined as d17, and thetotal optical length of the camera optical lens 10 is defined as TTL.The camera optical leans 10 satisfies a condition of 0.04≤d17/TTL≤0.12.This condition can achieve ultra-thin lenses. As an example, the cameraoptical leans 10 satisfies a condition of 0.06≤d17/TTL≤0.10.

In this embodiment, an image height of the camera optical lens 10 isdefined as IH, and the total optical length of the camera optical lens10 is defined as TTL. The camera optical leans 10 satisfies a conditionof TTL/IH≤1.62, thereby achieving ultra-thin lenses.

In this embodiment, a field of view (FOV) of the camera optical lens 10is greater than or equal to 78°, thereby achieving a wide angle. Thecamera optical lens has good imaging performance.

In this embodiment, an F number FNO of the camera optical lens 10 issmaller than or equal to 1.90, thereby achieving a large aperture. Thecamera optical lens thus has good imaging performance.

When the above conditions are satisfied, the camera optical lens 10 canmeet design requirements of a large aperture, a wide angle, andultra-thinness while having good optical performance. According to thecharacteristics of the camera optical lens 10, the camera optical lens10 is particularly applicable to a mobile phone camera lens assembly anda WEB camera lens composed of high pixel CCD, CMOS, and other cameraelements.

Examples of the camera optical lens 10 of the present disclosure aredescribed below. Symbols described in each example will be described asfollows. The focal length, on-axis distance, central curvature radius,on-axis thickness, inflexion point position, and arrest point positionare all in units of mm.

TTL: total optical length (on-axis distance from the object side surfaceof the first lens L1 to the image plane) in mm.

F number (FNO): a ratio of an effective focal length of the cameraoptical lens to an entrance pupil diameter of the camera optical lens.

In some embodiments, at least one of the object side surface or theimage side surface of each lens is provided with at least one ofinflection points or arrest points to meet high-quality imagingrequirements. The specific implementations can be referred to thefollowing description.

Table 1 and Table 2 indicate design data of the camera optical lens 10according to the Embodiment 1 of the present disclosure.

TABLE 1 R d nd νd S1 ∞ d0 = −0.446 R1 2.458 d1 = 0.423 nd1 1.5444 ν155.82 R2 3.689 d2 = 0.035 R3 3.394 d3 = 0.463 nd2 1.5444 ν2 55.82 R43.230 d4 = 0.047 R5 2.651 d5 = 0.260 nd3 1.6700 ν3 19.39 R6 3.054 d6 =0.384 R7 10.831 d7 = 0.200 nd4 1.6700 ν4 19.39 R8 9.756 d8 = 0.058 R924.660 d9 = 0.318 nd5 1.5346 ν5 55.69 R10 −127.337 d10 = 0.250 R11−84.280 d11 = 0.559 nd6 1.5346 ν6 55.69 R12 −12.071 d12 = 0.324 R139.623 d13 = 0.672 nd7 1.5876 ν7 29.04 R14 4.010 d14 = 0.133 R15 2.473d15 = 0.530 nd8 1.5444 ν8 55.82 R16 41.678 d16 = 0.648 R17 −11.738 d17 =0.555 nd9 1.5346 ν9 55.69 R18 2.616 d18 = 0.250 R19 ∞ d19 = 0.210 ndg1.5168 νg 64.17 R20 ∞ d20 = 0.592

In the above table, meanings of the symbols will be described asfollows.

S1: aperture;

R: curvature radius at center of an optical surface;

R1: central curvature radius of the object side surface of the firstlens L1;

R2: central curvature radius of the image side surface of the first lensL1;

R3: central curvature radius of the object side surface of the secondlens L2;

R4: central curvature radius of the image side surface of the secondlens L2;

R5: central curvature radius of the object side surface of the thirdlens L3;

R6: central curvature radius of the image side surface of the third lensL3;

R7: central curvature radius of the object side surface of the fourthlens L4;

R8: central curvature radius of the image side surface of the fourthlens L4;

R9: central curvature radius of the object side surface of the fifthlens L5;

R10: central curvature radius of the image side surface of the fifthlens L5;

R11: central curvature radius of the object side surface of the sixthlens L6;

R12: central curvature radius of the image side surface of the sixthlens L6;

R13: central curvature radius of the object side surface of the seventhlens L7;

R14: central curvature radius of the image side surface of the seventhlens L7;

R15: central curvature radius of the object side surface of the eighthlens L8;

R16: central curvature radius of the image side surface of the eighthlens L8;

R17: central curvature radius of the object side surface of the ninthlens L9;

R18: central curvature radius of the image side surface of the ninthlens L9;

R19: central curvature radius of the object side surface of the opticalfilter GF;

R20: central curvature radius of the image side surface of the opticalfilter GF;

d: on-axis thickness of a lens and an on-axis distance between thelenses;

d0: on-axis distance from the aperture S1 to the object side surface ofthe first lens L1;

d1: on-axis thickness of the first lens L1;

d2: on-axis distance from the image side surface of the first lens L1 tothe object side surface of the second lens L2;

d3: on-axis thickness of the second lens L2;

d4: on-axis distance from the image side surface of the second lens L2to the object side surface of the third lens L3;

d5: on-axis thickness of the third lens L3;

d6: on-axis distance from the image side surface of the third lens L3 tothe object side surface of the fourth lens L4;

d7: on-axis thickness of the fourth lens L4;

d8: on-axis distance from the image side surface of the fourth lens L4to the object side surface of the fifth lens L5;

d9: on-axis thickness of the fifth lens L5;

d10: on-axis distance from the image side surface of the fifth lens L5to the object side surface of the sixth lens L6;

d11: on-axis thickness of the sixth lens L6;

d12: on-axis distance from the image side surface of the sixth lens L6to the object side surface of the seventh lens L7;

d13: on-axis thickness of the seventh lens L7;

d14: on-axis distance from the image side surface of the seventh lens L7to the object side surface of the eighth lens L8;

d15: on-axis thickness of the eighth lens L8;

d16: on-axis distance from the image side surface of the eighth lens L8to the object side surface of the ninth lens L9;

d17: on-axis thickness of the ninth lens L9;

d18: on-axis distance from the image side surface of the ninth lens L9to the object side surface of the optical filter GF;

d19: on-axis thickness of the optical filter GF;

d20: on-axis distance from the image side surface of the optical filterGF to the image plane;

nd: refractive index of d-line;

nd1: refractive index of d-line of the first lens L1;

nd2: refractive index of d-line of the second lens L2;

nd3: refractive index of d-line of the third lens L3;

nd4: refractive index of d-line of the fourth lens L4;

nd5: refractive index of d-line of the fifth lens L5;

nd6: refractive index of d-line of the sixth lens L6;

nd7: refractive index of d-line of the seventh lens L7;

nd8: refractive index of d-line of the eighth lens L8;

nd9: refractive index of d-line of the ninth lens L9;

ndg: refractive index of d-line of the optical filter GF;

vd: abbe number;

v1: abbe number of the first lens L1;

v2: abbe number of the second lens L2;

v3: abbe number of the third lens L3;

v4: abbe number of the fourth lens L4;

v5: abbe number of the fifth lens L5;

v6: abbe number of the sixth lens L6;

v7: abbe number of the seventh lens L7;

v8: abbe number of the eighth lens L8;

v9: abbe number of the ninth lens L9; and

vg: abbe number of the optical filter GF.

Table 2 indicates aspherical surface data of each lens in the cameraoptical lens 10 according to the Embodiment 1 of the present disclosure.

TABLE 2 Conic coefficient Aspherical surface coefficient k A4 A6 A8 A10A12 R1 4.1258E−02 −5.1208E−03 1.8107E−02 −4.7171E−02 6.8331E−02−6.0611E−02 R2 −1.1858E−01 −5.1821E−03 1.9719E−02 −8.1790E−03 5.3432E−03−1.3206E−02 R3 1.8578E+00 −1.9068E−02 3.9731E−02 −3.0582E−02 3.1749E−02−3.6610E−02 R4 −5.5919E+01 −1.2052E−01 1.8507E−01 −4.7744E−02−1.1947E−01 1.2043E−01 R5 −2.0816E+01 −1.4612E−01 2.3580E−01 −8.1651E−02−1.3723E−01 1.6389E−01 R6 −8.5857E−02 −4.2181E−02 1.8212E−02 1.0739E−01−2.0735E−01 1.6398E−01 R7 −3.2487E+01 8.9300E−03 −7.6918E−02 −6.6289E−024.3419E−01 −7.9524E−01 R8 2.9444E+01 2.0036E−01 −7.3704E−01 1.2916E+00−1.4873E+00 1.0973E+00 R9 2.4811E+02 2.5279E−01 −8.1525E−01 1.3743E+00−1.5059E+00 1.1065E+00 R10 5.9127E−02 −2.0162E−01 2.3994E−01 −1.4572E−014.8723E−02 −8.9415E−03 R11 9.7648E+01 3.7501E−02 −9.8087E−02 9.1112E−02−4.0173E−02 8.1782E−03 R12 3.8723E+01 −6.0152E−03 −1.5032E−02−1.4600E−02 3.2621E−02 −2.3421E−02 R13 −2.9904E+01 −3.3485E−023.6997E−02 −4.8304E−02 3.4633E−02 −1.5643E−02 R14 −9.4652E+00−1.2931E−01 1.0622E−01 −6.1391E−02 2.3399E−02 −5.9201E−03 R15−8.7133E+00 −2.3355E−02 −1.2277E−02 1.4020E−02 −8.3121E−03 2.7904E−03R16 9.6974E+01 7.1988E−02 −7.6452E−02 3.9573E−02 −1.3492E−02 2.9828E−03R17 3.2548E+00 −6.9201E−02 1.5811E−02 −4.0336E−03 1.5481E−03 −3.5136E−04R18 −9.9213E+00 −4.5988E−02 1.3880E−02 −3.4171E−03 6.4255E−04−8.4731E−05 Conic coefficient Aspherical surface coefficient k A14 A16A18 A20 R1 4.1258E−02 3.3636E−02 −1.1434E−02 2.1838E−03 −1.8039E−04 R2−1.1858E−01 8.6683E−03 −1.7016E−03 0.0000E+00 0.0000E+00 R3 1.8578E+001.8908E−02 −3.3625E−03 0.0000E+00 0.0000E+00 R4 −5.5919E+01 −4.3405E−025.5262E−03 0.0000E+00 0.0000E+00 R5 −2.0816E+01 −6.6889E−02 9.6743E−030.0000E+00 0.0000E+00 R6 −8.5857E−02 −5.9898E−02 8.2209E−03 0.0000E+000.0000E+00 R7 −3.2487E+01 7.5870E−01 −4.0608E−01 1.1638E−01 −1.4010E−02R8 2.9444E+01 −5.0154E−01 1.3397E−01 −1.8238E−02 8.6265E−04 R92.4811E+02 −5.3311E−01 1.5937E−01 −2.6492E−02 1.8489E−03 R10 5.9127E−027.5216E−04 0.0000E+00 0.0000E+00 0.0000E+00 R11 9.7648E+01 −4.9100E−04−2.9802E−05 0.0000E+00 0.0000E+00 R12 3.8723E+01 9.3133E−03 −2.2568E−033.1941E−04 −2.0045E−05 R13 −2.9904E+01 4.5653E−03 −8.6268E−04 9.5913E−05−4.6126E−06 R14 −9.4652E+00 9.6815E−04 −9.8259E−05 5.8059E−06−1.6402E−07 R15 −8.7133E+00 −5.9647E−04 8.0978E−05 −6.1460E−061.9080E−07 R16 9.6974E+01 −4.1399E−04 3.4668E−05 −1.6004E−06 3.1309E−08R17 3.2548E+00 4.3686E−05 −3.0452E−06 1.1253E−07 −1.7217E−09 R18−9.9213E+00 7.3108E−06 −3.8805E−07 1.1485E−08 −1.4583E−10

In Table 2, k is a conic coefficient, and A4, A6, A8, A10, A12, A14,A16, A18, and A20 are aspherical surface coefficients.

y=(x ² /R)/{1+[1−(k+1)(x ² /R ²)]^(1/2) }+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹⁶ +A18x ¹⁸ +A20x ^(°)  (1),

where x is a vertical distance between a point on an aspherical curveand the optic axis, and y is an aspherical depth (a vertical distancebetween a point on an aspherical surface at a distance of x from theoptic axis and a surface tangent to a vertex of the aspherical surfaceon the optic axis).

In the present embodiment, an aspherical surface of each lens surfaceuses the aspherical surface represented by the above formula (1).However, the present disclosure is not limited to the asphericalpolynomial form represented by the formula (1).

Table 3 and Table 4 indicate design data of inflection points and arrestpoints of each lens in the camera optical lens 10 according to theEmbodiment 1 of the present disclosure. P1R1 and P1R2 represent theobject side surface and the image side surface of the first lens L1,respectively. P2R1 and P2R2 represent the object side surface and theimage side surface of the second lens L2, respectively. P3R1 and P3R2represent the object side surface and the image side surface of thethird lens L3, respectively. P4R1 and P4R2 represent the object sidesurface and the image side surface of the fourth lens L4, respectively.P5R1 and P5R2 represent the object side surface and the image sidesurface of the fifth lens L5, respectively. P6R1 and P6R2 represent theobject side surface and the image side surface of the sixth lens L6,respectively. P7R1 and P7R2 represent the object side surface and theimage side surface of the seventh lens L7, respectively. P8R1 and P8R2represent the object side surface and the image side surface of theeighth lens L8, respectively. P9R1 and P9R2 represent the object sidesurface and the image side surface of the ninth lens L9, respectively.Data in the “inflection point position” column refers to verticaldistances from inflection points arranged on each lens surface to theoptic axis of the camera optical lens 10. Data in the “arrest pointposition” column refers to vertical distances from arrest pointsarranged on each lens surface to the optic axis of the camera opticallens 10.

TABLE 3 Number of inflection Inflection point Inflection pointInflection point Inflection point Inflection point points position 1position 2 position 3 position 4 position 5 P1R1 0 / / / / / P1R2 11.385 / / / / P2R1 1 1.395 / / / / P2R2 1 1.325 / / / / P3R1 0 / / / / /P3R2 0 / / / / / P4R1 1 0.485 / / / / P4R2 2 0.565 1.305 / / / P5R1 20.585 1.035 / / / P5R2 2 0.425 1.475 / / / P6R1 5 0.185 0.425 1.0851.295 1.425 P6R2 1 1.615 / / / / P7R1 2 0.615 1.975 / / / P7R2 1 0.465 // / / P8R1 3 0.745 2.225 2.365 / / P8R2 2 0.895 2.165 / / / P9R1 2 1.7353.135 / / / P9R2 1 0.695 / / / /

TABLE 4 Number of Arrest point Arrest point arrest points position 1position 2 P1R1 0 / / P1R2 0 / / P2R1 0 / / P2R2 0 / / P3R1 0 / / P3R2 0/ / P4R1 1 0.755 / P4R2 1 0.895 / P5R1 0 / / P5R2 1 0.575 / P6R1 1 1.595/ P6R2 0 / / P7R1 1 1.015 / P7R2 1 1.025 / P8R1 1 1.375 / P8R2 1 1.335 /P9R1 2 2.875 3.335 P9R2 1 1.535 /

FIG. 2 and FIG. 3 respectively illustrate schematic diagrams oflongitudinal aberration and lateral color of light with wavelengths of650 nm, 610 nm, 555 nm, 510 nm, and 470 nm after passing through thecamera optical lens 10 in the Embodiment 1. FIG. 4 illustrates aschematic diagram of field curvature and distortion of light with awavelength of 555 nm after passing through the camera optical lens 10 inthe Embodiment 1, in which the field curvature S is a field curvature ina sagittal direction, and T is a field curvature in a meridionaldirection.

Table 13 hereinafter indicates various values in Embodiments 1, 2, and 3corresponding to parameters specified in the above conditions.

As shown in Table 13, the Embodiment 1 satisfies each of the aboveconditions.

In the present embodiment, the camera optical lens 10 has an entrancepupil diameter ENPD of 2.877 mm, an image height IH of full field of4.595 mm, and the FOV (field of view) of 78.00° in a diagonal direction,such that the camera optical lens 10 meets design requirements for largeaperture, wide angle and ultra-thinness while sufficiently correctingon-axis and off-axis chromatic aberration, thereby achieving excellentoptical characteristics.

Embodiment 2

The Embodiment 2 is substantially the same as the Embodiment 1. Themeanings of symbols in the Embodiment 2 are the same as those in theEmbodiment 1. Differences therebetween will be described below.

FIG. 5 illustrates a camera optical lens 20 according to the Embodiment2 of the present disclosure. In this embodiment, the fourth lens L4 haspositive refractive power.

In this embodiment, the image side surface of the fifth lens L5 is aconcave surface at the paraxial position, and the object side surface ofthe sixth lens L6 is a convex surface at the paraxial position.

Table 5 and Table 6 indicate design data of the camera optical lens 20according to the Embodiment 2 of the present disclosure.

TABLE 5 R d nd νd S1 ∞ d0 = −0.435 R1 2.648 d1 = 0.364 nd1 1.5444 ν155.82 R2 3.340 d2 = 0.035 R3 3.117 d3 = 0.492 nd2 1.5444 ν2 55.82 R42.784 d4 = 0.082 R5 2.415 d5 = 0.260 nd3 1.6700 ν3 19.39 R6 3.160 d6 =0.310 R7 8.050 d7 = 0.204 nd4 1.6700 ν4 19.39 R8 9.002 d8 = 0.059 R921.340 d9 = 0.336 nd5 1.5346 ν5 55.69 R10 29.478 d10 = 0.472 R11 9.710d11 = 0.524 nd6 1.5346 ν6 55.69 R12 −198.477 d12 = 0.376 R13 9.253 d13 =0.473 nd7 1.5876 ν7 29.04 R14 3.002 d14 = 0.179 R15 1.992 d15 = 0.524nd8 1.5444 ν8 55.82 R16 20.628 d16 = 0.684 R17 −9.617 d17 = 0.528 nd91.5346 ν9 55.69 R18 2.845 d18 = 0.273 R19 ∞ d19 = 0.210 ndg 1.5168 νg64.17 R20 ∞ d20 = 0.615

Table 6 indicates aspherical surface data of each lens in the cameraoptical lens 20 according to the Embodiment 2 of the present disclosure.

TABLE 6 Conic coefficient Aspherical surface coefficient k A4 A6 A8 A10A12 R1 1.1239E−01 −4.3762E−03 1.8328E−02 −4.7188E−02 6.8226E−02−6.0611E−02 R2 7.9578E−02 −5.6906E−02 2.7405E−01 −4.8286E−01 4.6871E−01−2.6355E−01 R3 1.7033E+00 −6.5532E−02 2.4479E−01 −4.0709E−01 3.8645E−01−2.1791E−01 R4 −5.5892E+01 −1.2668E−01 2.4501E−01 −1.7920E−01 8.6852E−036.2676E−02 R5 −2.4285E+01 −1.9035E−01 3.8243E−01 −3.0345E−01 3.8919E−029.6376E−02 R6 −8.6949E−01 −5.9590E−02 −3.2850E−02 3.9575E−01 −6.9363E−015.5746E−01 R7 −1.9110E+01 −7.6430E−02 6.1173E−01 −2.5787E+00 5.8242E+00−7.9780E+00 R8 3.1597E+01 2.3834E−01 −6.1172E−01 5.0164E−01 3.3180E−01−1.3516E+00 R9 2.1364E+02 2.9821E−01 −7.7298E−01 9.5839E−01 −5.6374E−01−1.4233E−01 R10 −8.2801E+04 4.3510E−02 −1.2633E−01 1.2812E−01−7.5729E−02 3.2936E−02 R11 0.0000E+00 1.2342E−02 −2.2356E−02 2.1289E−049.8251E−03 −5.0522E−03 R12 −1.8692E+03 −6.3287E−03 1.5792E−02−4.6443E−02 4.1592E−02 −2.2671E−02 R13 −8.7749E+00 −6.3086E−026.9747E−02 −2.0548E−02 −2.5729E−02 2.4511E−02 R14 −1.0233E+01−1.9845E−01 2.0767E−01 −1.1689E−01 3.4789E−02 −4.5974E−03 R15−7.7347E+00 −3.3843E−02 3.0266E−02 −2.8147E−02 1.3165E−02 −3.9281E−03R16 −9.9000E+01 8.5643E−02 −6.3340E−02 1.2483E−02 2.0800E−03 −1.6872E−03R17 7.2241E−01 −3.4203E−02 −9.0440E−03 −8.2705E−04 3.1435E−03−1.0164E−03 R18 −3.8293E+00 −4.7172E−02 5.5886E−04 3.4755E−03−1.0440E−03 1.5604E−04 Conic coefficient Aspherical surface coefficientk A14 A16 A18 A20 R1 1.1239E−01 3.3636E−02 −1.1434E−02 2.1838E−03−1.8039E−04 R2 7.9578E−02 7.9061E−02 −9.6952E−03 0.0000E+00 0.0000E+00R3 1.7033E+00 6.5760E−02 −8.0134E−03 0.0000E+00 0.0000E+00 R4−5.5892E+01 −3.4766E−02 6.1153E−03 0.0000E+00 0.0000E+00 R5 −2.4285E+01−5.9493E−02 1.0817E−02 0.0000E+00 0.0000E+00 R6 −8.6949E−01 −2.1500E−013.1933E−02 0.0000E+00 0.0000E+00 R7 −1.9110E+01 6.7284E+00 −3.4049E+009.4842E−01 −1.1194E−01 R8 3.1597E+01 1.5313E+00 −8.7478E−01 2.5377E−01−2.9627E−02 R9 2.1364E+02 5.1009E−01 −3.6596E−01 1.1707E−01 −1.4405E−02R10 −8.2801E+04 −1.0485E−02 1.5269E−03 0.0000E+00 0.0000E+00 R110.0000E+00 1.0450E−03 −7.8852E−05 0.0000E+00 0.0000E+00 R12 −1.8692E+039.1196E−03 −2.5602E−03 4.2482E−04 −3.0241E−05 R13 −8.7749E+00−9.1828E−03 1.7334E−03 −1.5590E−04 4.6941E−06 R14 −1.0233E+01−1.7507E−04 1.3361E−04 −1.4927E−05 5.2717E−07 R15 −7.7347E+00 7.8406E−04−1.1035E−04 1.0654E−05 −5.0512E−07 R16 −9.9000E+01 4.0973E−04−5.1392E−05 3.3286E−06 −8.7925E−08 R17 7.2241E−01 1.5378E−04 −1.2680E−055.5281E−07 −1.0020E−08 R18 −3.8293E+00 −1.4031E−05 7.8294E−07−2.5252E−08 3.6007E−10

Table 7 and Table 8 indicate design data of inflection points and arrestpoints of each lens in the camera optical lens 20 according to theEmbodiment 2 of the present disclosure.

TABLE 7 Number of Inflection Inflection Inflection Inflection inflectionpoint point point point points position 1 position 2 position 3 position4 P1R1 0 / / / / P1R2 0 / / / / P2R1 0 / / / / P2R2 2 1.025 1.085 / /P3R1 0 / / / / P3R2 1 1.215 / / / P4R1 1 0.565 / / / P4R2 2 0.595 1.285/ / P5R1 4 0.625 0.995 1.165 1.355 P5R2 1 0.455 / / / P6R1 2 0.855 1.075/ / P6R2 1 1.405 / / / P7R1 1 0.895 / / / P7R2 3 0.425 2.095 2.265 /P8R1 3 0.825 2.115 2.365 / P8R2 3 0.915 2.135 2.485 / P9R1 3 1.715 2.9652.995 / P9R2 4 0.735 3.045 3.465 3.725

TABLE 8 Number of Arrest point Arrest point arrest points position 1position 2 P1R1 0 / / P1R2 0 / / P2R1 0 / / P2R2 0 / / P3R1 0 / / P3R2 0/ / P4R1 1 0.845 / P4R2 1 0.925 / P5R1 2 1.305 1.385 P5R2 1 0.655 / P6R10 / / P6R2 1 1.675 / P7R1 1 1.175 / P7R2 1 1.275 / P8R1 1 1.435 / P8R2 11.335 / P9R1 1 2.795 / P9R2 2 1.455 3.875

FIG. 6 and FIG. 7 respectively illustrate schematic diagrams of alongitudinal aberration and a lateral color of light with wavelengths of650 nm, 610 nm, 555 nm, 510 nm, and 470 nm after passing through thecamera optical lens 20 in the Embodiment 2. FIG. 8 illustrates aschematic diagram of field curvature and distortion of light with awavelength of 555 nm after passing through the camera optical lens 20 inthe Embodiment 2.

As shown in Table 13, the Embodiment 2 satisfies the above conditions.

In this embodiment, the camera optical lens 20 has an entrance pupildiameter ENPD of 2.967 mm, an image height IH of full field of 4.595 mm,and the FOV (field of view) of 78.10° in a diagonal direction, such thatthe camera optical lens 20 meets design requirements for large aperture,wide angle and ultra-thinness while sufficiently correcting on-axis andoff-axis chromatic aberration, thereby achieving excellent opticalcharacteristics.

Embodiment 3

The Embodiment 3 is substantially the same as the Embodiment 1. Themeanings of symbols in the Embodiment 3 are the same as those in theEmbodiment 1. Differences therebetween will be described below.

FIG. 9 illustrates a camera optical lens 30 according to the Embodiment3 of the present disclosure. In this embodiment, the fourth lens L4 hasa positive refractive power, and the fifth lens L5 has a negativerefractive power.

In this embodiment, the image side surface of the fifth lens L5 is aconcave surface at the paraxial position, and the object side surface ofthe sixth lens L6 is a convex surface at the paraxial position.

Table 9 and Table 10 indicate design data of the camera optical lens 30according to the Embodiment 3 of the present disclosure.

TABLE 9 R d nd νd S1 ∞ d0 = −0.386 R1 2.976 d1 = 0.393 nd1 1.5444 ν155.82 R2 3.552 d2 = 0.070 R3 3.560 d3 = 0.338 nd2 1.5444 ν2 55.82 R42.595 d4 = 0.150 R5 2.379 d5 = 0.260 nd3 1.6700 ν3 19.39 R6 3.495 d6 =0.217 R7 6.264 d7 = 0.205 nd4 1.6700 ν4 19.39 R8 8.222 d8 = 0.059 R918.431 d9 = 0.462 nd5 1.5346 ν5 55.69 R10 15.871 d10 = 0.624 R11 7.079d11 = 0.622 nd6 1.5346 ν6 55.69 R12 −16.827 d12 = 0.347 R13 18.147 d13 =0.513 nd7 1.5876 ν7 29.04 R14 2.166 d14 = 0.097 R15 1.525 d15 = 0.551nd8 1.5444 ν8 55.82 R16 13.453 d16 = 0.817 R17 −13.379 d17 = 0.603 nd91.5346 ν9 55.69 R18 2.774 d18 = 0.272 R19 ∞ d19 = 0.210 ndg 1.5168 νg64.17 R20 ∞ d20 = 0.614

Table 10 indicates aspherical surface data of each lens in the cameraoptical lens 30 according to the Embodiment 3 of the present disclosure.

TABLE 10 Conic coefficient Aspherical surface coefficient k A4 A6 A8 A10A12 R1 4.1213E−01 −3.1641E−03 −1.1386E−02 1.1173E−01 −2.6785E−013.2485E−01 R2 −4.1869E−01 −1.2714E−01 5.9585E−01 −1.0392E+00 9.8474E−01−5.3295E−01 R3 5.7074E−01 −1.8195E−01 6.7671E−01 −1.1275E+00 1.0360E+00−5.5001E−01 R4 −6.7219E+01 −4.5907E−02 1.3904E−01 −2.3679E−01 2.0866E−01−1.0191E−01 R5 −2.9866E+01 −1.5182E−01 3.5036E−01 −3.9811E−01 2.3208E−01−5.4460E−02 R6 −3.7313E+00 −1.6523E−01 2.8833E−01 −8.4677E−02−2.4426E−01 2.9634E−01 R7 −1.0320E+01 −6.4342E−02 5.7119E−01 −2.5353E+005.7075E+00 −7.5014E+00 R8 3.2797E+01 4.1658E−01 −9.2123E−01 1.2909E−012.2373E+00 −4.1355E+00 R9 1.6053E+02 4.1965E−01 −8.1074E−01 1.8330E−011.4521E+00 −2.5659E+00 R10 −1.0727E+04 6.0871E−02 −1.4826E−01 1.3305E−01−6.1185E−02 1.2129E−02 R11 1.7917E+00 1.2963E−02 −1.9968E−02 9.6248E−03−4.7515E−03 2.4856E−03 R12 −6.4597E+02 −1.3955E−02 1.4410E−02−4.2375E−03 −2.2807E−02 2.6397E−02 R13 7.0855E+01 −6.7994E−02 8.3630E−02−3.5717E−02 −1.5893E−02 2.1700E−02 R14 −1.1467E+01 −2.3393E−012.5676E−01 −1.5417E−01 5.6181E−02 −1.3087E−02 R15 −6.7696E+00−5.2384E−02 4.5321E−02 −3.0203E−02 1.0677E−02 −1.7510E−03 R16−1.0217E+01 9.8069E−02 −8.8174E−02 3.5033E−02 −8.3504E−03 1.1962E−03 R174.8327E+00 −4.4990E−02 4.3942E−03 −1.9507E−03 8.9866E−04 −1.1019E−04 R18−5.8485E+00 −3.8192E−02 7.3110E−03 −1.0221E−03 1.2088E−04 −9.2547E−06Conic coefficient Aspherical surface coefficient k A14 A16 A18 A20 R14.1213E−01 −2.2737E−01 9.3058E−02 −2.0723E−02 1.9397E−03 R2 −4.1869E−011.5190E−01 −1.7627E−02 0.0000E+00 0.0000E+00 R3 5.7074E−01 1.5643E−01−1.8379E−02 0.0000E+00 0.0000E+00 R4 −6.7219E+01 2.8825E−02 −3.8269E−030.0000E+00 0.0000E+00 R5 −2.9866E+01 −4.1916E−03 2.8384E−03 0.0000E+000.0000E+00 R6 −3.7313E+00 −1.3565E−01 2.2982E−02 0.0000E+00 0.0000E+00R7 −1.0320E+01 5.9558E+00 −2.8162E+00 7.3122E−01 −8.0333E−02 R83.2797E+01 3.6615E+00 -1.8026E+00 4.7428E−01 −5.2235E−02 R9 1.6053E+022.1500E+00 -1.0077E+00 2.5358E−01 −2.6769E−02 R10 −1.0727E+04 5.8583E−05−3.1431E−04 0.0000E+00 0.0000E+00 R11 1.7917E+00 −6.5539E−04 6.2801E−050.0000E+00 0.0000E+00 R12 −6.4597E+02 −1.3751E−02 4.0540E−03 −6.5350E−044.4476E−05 R13 7.0855E+01 −9.9771E−03 2.5017E−03 −3.4038E−04 1.9601E−05R14 −1.1467E+01 1.9015E−03 −1.5600E−04 5.6585E−06 −2.4961E−08 R15−6.7696E+00 −3.1934E−05 5.2552E−05 −6.4214E−06 2.3741E−07 R16−1.0217E+01 −8.8965E−05 1.3146E−06 2.3046E−07 −1.0605E−08 R17 4.8327E+00−3.7748E−06 1.7810E−06 −1.3412E−07 3.3267E−09 R18 −5.8485E+00−6.6852E−08 7.4896E−08 −5.1183E−09 1.1042E−10

Table 11 and Table 12 indicate design data of inflection points andarrest points of each lens in the camera optical lens 30 according tothe Embodiment 3 of the present disclosure.

TABLE 11 Number Inflec- Inflec- Inflec- Inflec- Inflec- of tion tiontion tion tion inflec- point point point point point tion positionposition position position position points 1 2 3 4 5 P1R1 1 1.425 / / // P1R2 1 1.055 / / / / P2R1 1 1.015 / / / / P2R2 2 0.625 0.985 / / /P3R1 1 1.135 / / / / P3R2 2 1.055 1.285 / / / P4R1 1 0.595 / / / / P4R21 0.585 / / / / P5R1 3 0.625 1.025 1.195 / / P5R2 1 0.515 / / / / P6R1 0/ / / / / P6R2 1 1.425 / / / / P7R1 3 0.315 0.655 0.875 / / P7R2 3 0.4151.995 2.335 / / P8R1 3 0.815 2.195 2.405 / / P8R2 5 0.965 2.175 2.5952.855 2.925 P9R1 1 1.835 / / / / P9R2 2 0.805 3.795 / / /

TABLE 12 Number of arrest points Arrest point position 1 P1R1 0 / P1R2 11.395 P2R1 0 / P2R2 0 / P3R1 0 / P3R2 0 / P4R1 1 0.945 P4R2 1 1.005 P5R11 1.345 P5R2 1 0.775 P6R1 0 / P6R2 1 1.705 P7R1 1 1.025 P7R2 1 1.395P8R1 1 1.595 P8R2 1 1.505 P9R1 1 2.995 P9R2 1 1.735

FIG. 10 and FIG. 11 respectively illustrate schematic diagrams of alongitudinal aberration and a lateral color of light with wavelengths of650 nm, 610 nm, 555 nm, 510 nm, and 470 nm after passing through thecamera optical lens 30 in the Embodiment 3. FIG. 12 illustrates aschematic diagram of field curvature and distortion of light with awavelength of 555 nm after passing through the camera optical lens 30 inthe Embodiment 3.

Table 13 below includes values corresponding to the above conditions inthis embodiment according to the above conditions. It is apparent thatthe camera optical lens in this embodiment satisfies the aboveconditions.

In this embodiment, the camera optical lens 30 has an entrance pupildiameter ENPD of 2.939 mm, an image height IH of full field of 4.595 mm,and the FOV (field of view) of 78.20° in a diagonal direction, such thatthe camera optical lens 30 meets design requirements for large aperture,wide angle and ultra-thinness while sufficiently correcting on-axis andoff-axis chromatic aberration, thereby achieving excellent opticalcharacteristics.

TABLE 13 Parameters and Conditions Embodiment 1 Embodiment 2 Embodiment3 f1/f 2.20 3.50 4.85 d3/d4 9.85 6.00 2.25 f 5.466 5.637 5.584 f1 12.02419.724 27.064 f2 −975062.460 −100.000 −20.000 f3 23.561 13.270 10.071 f4−157.064 103.573 37.304 f5 38.547 142.071 −227.296 f6 26.198 17.2759.375 f7 −12.168 −7.734 −4.211 f8 4.791 3.996 3.099 f9 -3.936 −4.034−4.229 f12 11.445 22.541 −112.533 FNO 1.90 1.90 1.90 TTL 6.911 7.0007.424 IH 4.595 4.595 4.595 FOV 78.00° 78.10° 78.20°

The above are only the embodiments of the present disclosure. It shouldbe understand that those skilled in the art can make improvementswithout departing from the inventive concept of the present disclosure,and these improvements shall all belong to the scope of the presentdisclosure.

What is claimed is:
 1. A camera optical lens, comprising, from an objectside to an image side: a first lens having a positive refractive power;a second lens having a negative refractive power; a third lens; a fourthlens; a fifth lens; a sixth lens; a seventh lens; an eighth lens; and aninth lens, wherein the camera optical lens satisfies followingconditions:2.00≤f1/f≤5.00; and2.00≤d3/d4≤10.00, where f denotes a focal length of the camera opticallens, f1 denotes a focal length of the first lens, d3 denotes an on-axisthickness of the second lens, and d4 denotes an on-axis distance from animage side surface of the second lens to an object side surface of thethird lens.
 2. The camera optical lens as described in claim 1, furthersatisfying a following condition:1.50≤f6/f≤5.00, where f6 denotes a focal length of the sixth lens. 3.The camera optical lens as described in claim 1, further satisfyingfollowing conditions:−22.67≤(R1+R2)/(R1−R2)≤−3.33; and0.03≤d1/TTL≤0.09, where R1 denotes a central curvature radius of anobject side surface of the first lens, R2 denotes a central curvatureradius of an image side surface of the first lens, d1 denotes an on-axisthickness of the first lens, and TTL denotes a total optical length fromthe object side surface of the first lens to an image plane of thecamera optical lens along an optic axis.
 4. The camera optical lens asdescribed in claim 1, further satisfying following conditions:f2/f≤−2.39;3.19≤(R3+R4)/(R3−R4)≤60.59; and0.02≤d3/TTL≤0.11, where f2 denotes a focal length of the second lens, R3denotes a central curvature radius of an object side surface of thesecond lens, R4 denotes a central curvature radius of the image sidesurface of the second lens, and TTL denotes a total optical length froman object side surface of the first lens to an image plane of the cameraoptical lens along an optic axis.
 5. The camera optical lens asdescribed in claim 1, further satisfying following conditions:0.90≤f3/f≤6.47;−28.31≤(R5+R6)/(R5−R6)≤−3.51; and0.02≤d5/TTL≤0.06, where f3 denotes a focal length of the third lens, R5denotes a central curvature radius of the object side surface of thethird lens, R6 denotes a central curvature radius of an image sidesurface of the third lens, d5 denotes an on-axis thickness of the thirdlens, and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.
 6. The camera optical lens as described in claim 1, furthersatisfying following conditions:−57.47≤f4/f≤27.56;−35.82≤(R7+R8)/(R7−R8)≤28.73; and0.01≤d7/TTL≤0.04, where f4 denotes a focal length of the fourth lens, R7denotes a central curvature radius of an object side surface of thefourth lens, R8 denotes a central curvature radius of an image sidesurface of the fourth lens, d7 denotes an on-axis thickness of thefourth lens, and TTL denotes a total optical length from an object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.
 7. The camera optical lens as described in claim 1,further satisfying following conditions:−81.41≤f5/f≤37.80;−12.49≤(R9+R10)/(R9−R10)≤20.10; and0.02≤d9/TTL≤0.09, where f5 denotes a focal length of the fifth lens, R9denotes a central curvature radius of an object side surface of thefifth lens, R10 denotes a central curvature radius of an image sidesurface of the fifth lens, d9 denotes an on-axis thickness of the fifthlens, and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.
 8. The camera optical lens as described in claim 1, furthersatisfying following conditions:−1.81≤(R11+R12)/(R11−R12)≤2.00; and0.04≤d11/TTL≤0.13, where R11 denotes a central curvature radius of anobject side surface of the sixth lens, R12 denotes a central curvatureradius of an image side surface of the sixth lens, d11 denotes anon-axis thickness of the sixth lens, and TTL denotes a total opticallength from an object side surface of the first lens to an image planeof the camera optical lens along an optic axis.
 9. The camera opticallens as described in claim 1, further satisfying following conditions:−4.45≤f7/f≤−0.50;0.64≤(R13+R14)/(R13−R14)≤3.64; and0.03≤d13/TTL≤0.15, where f7 denotes a focal length of the seventh lens,R13 denotes a central curvature radius of an object side surface of theseventh lens, R14 denotes a central curvature radius of an image sidesurface of the seventh lens, d13 denotes an on-axis thickness of theseventh lens, and TTL denotes a total optical length from an object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.
 10. The camera optical lens as described in claim1, further satisfying following conditions:0.28≤f8/f≤1.31;−2.51≤(R15+R16)/(R15−R16)≤−0.75; and0.04≤d15/TTL≤0.12, where f8 denotes a focal length of the eighth lens,R15 denotes a central curvature radius of an object side surface of theeighth lens, R16 denotes a central curvature radius of an image sidesurface of the eighth lens, d15 denotes an on-axis thickness of theeighth lens, and TTL denotes a total optical length from an object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.
 11. The camera optical lens as described in claim1, further satisfying following conditions:−1.51≤f9/f≤−0.48;0.27≤(R17+R18)/(R17−R18)≤0.98; and0.04≤d17/TTL≤0.12, where f9 denotes a focal length of the ninth lens,R17 denotes a central curvature radius of an object side surface of theninth lens, R18 denotes a central curvature radius of an image sidesurface of the ninth lens, d17 denotes an on-axis thickness of the ninthlens, and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.